Granted Patent
Utility
US 4,557,244 · App. 06/612,106
Method of machine cutting silicon metal particulates with Si.sub.3 N.sub.4
Inventor:
Richard Allor
Patented Case
View Patent ↗
Granted: Dec 10, 1985
Filed: Apr 13, 1984
Inventor
Richard Allor
Assignee (at issue)
Ford Motor Company
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.